Quality Assessment: Physical: Total Solids
The concentration of dissolved solids in stream water is important because it determines the flow of water in and out of the cells of aquatic organisms. Also, some dissolved inorganic elements such as nitrogen, phosphorus, and sulfur are nutrients essential for life. Low concentrations of total solids can result in limited growth of aquatic organisms due to nutrient deficiencies. Elevated levels of total solids, however, can lead to eutrophication of the stream or increased turbidity. Both eutrophication and increased turbidity result in a decrease in stream water quality.
and Catchment Area / Stream Order /
Forest Canopy / Width,
Depth, and Velocity / Rock Size / Turbidity
/ Total Solids / Temperature
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